1|Page
AACE CCT PRIMER EXAM AND PRACTICE EXAM NEWEST
2026/2027 COMPLETE 250 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED
A+||BRAND NEW!!|| SURE PASS!!!
_______ is the sum of measurements divided by the number of
measurements - ANSWER-mean
The best known and most reliable measure of central tendency
is the ____. The_____ is the arithmetic average of a group of
scores - ANSWER-mean, mean
______ is the middle number when the data observations are
arranged in ascending or descending order. If the number n of
measurements is even, the _____ is the______of the two
middle measurements in the ranking - ANSWER-median,
median, average
_______ is the measurement that occurs most often in the data
set. - ANSWER-Mode
If the observations have two modes, the data set is said to have
a _____ distribution. When the data set is multi-modal, the
,2|Page
mode(s) is on longer a viable measure of the ______ tendency. -
ANSWER-bimodal, central
In a large data set, the modal class is the _____ containing the
largest frequency. - ANSWER-class
The _____ is defined as the difference between the lowest and
highest score in a distribution of scores. - ANSWER-range
The _____ is not considered a stable measurement of
variability because the value can change greatly with the
change in a single score within the distribution - either the high
or low score - ANSWER-range
The _____ _____ is more stable than the range because it is
based on the spread of the scores through the center of the
distribution rather than through the two extremes. - ANSWER-
quartile deviation
The _____ and the ______ _______ both insensitive to extreme
scores in the distribution and should be used accordingly. -
ANSWER-median, quartile
,3|Page
_____ ____ is a more reliable indicator of the spread of a
distribution. It determines the amount each score deviates from
the mean of the distribution - ANSWER-standard deviation
The positive square root of the variance - ANSWER-standard
deviation
The average of the _______ deviations from the mean. The
variance has a squared unit and is in a much ____ ____ than
that of the original data - ANSWER-squared, larger scale
Variance is a measure of _____. It is the ____ _____ ____
between the mean and each item in the population or in the
sample. - ANSWER-dispersion, average squared distance
The normal distribution is a probability density which is ____-
shaped, symmetrical, and single peaked. The ____, ____ and
_____ coincide and lie at the center of the distribution. -
ANSWER-bell, mean, median, mode
, 4|Page
Skewness measures the lack of symmetry of a probability
distribution. A curve is said to be skewed to the right (or ______
skewed) if it tails off toward the high end of the scale (right tail
longer than the left). A curve is skewed to the left (or _______
skewed) if it tails off toward the low end of the scale. -
ANSWER-positively, negatively
_____ positive if the tails are "heavier" than for a normal
distribution and negative if the tails are "lighter" than for a
normal distribution. - ANSWER-Kurtosis
Regression analysis provides a "_______" mathematical
equation for the relationship between the dependent variable
(response) and independent variable(s). - ANSWER-best-fit
The _______ test can be used to determine how well
theoretical distributions (such as the normal and binomial
distributions) fit empirical distributions (i.e., those obtained
from sample data) - ANSWER-chi-squared
The compound rate of interest that when used to discount
study period costs and benefits of a project, will make their
AACE CCT PRIMER EXAM AND PRACTICE EXAM NEWEST
2026/2027 COMPLETE 250 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED
A+||BRAND NEW!!|| SURE PASS!!!
_______ is the sum of measurements divided by the number of
measurements - ANSWER-mean
The best known and most reliable measure of central tendency
is the ____. The_____ is the arithmetic average of a group of
scores - ANSWER-mean, mean
______ is the middle number when the data observations are
arranged in ascending or descending order. If the number n of
measurements is even, the _____ is the______of the two
middle measurements in the ranking - ANSWER-median,
median, average
_______ is the measurement that occurs most often in the data
set. - ANSWER-Mode
If the observations have two modes, the data set is said to have
a _____ distribution. When the data set is multi-modal, the
,2|Page
mode(s) is on longer a viable measure of the ______ tendency. -
ANSWER-bimodal, central
In a large data set, the modal class is the _____ containing the
largest frequency. - ANSWER-class
The _____ is defined as the difference between the lowest and
highest score in a distribution of scores. - ANSWER-range
The _____ is not considered a stable measurement of
variability because the value can change greatly with the
change in a single score within the distribution - either the high
or low score - ANSWER-range
The _____ _____ is more stable than the range because it is
based on the spread of the scores through the center of the
distribution rather than through the two extremes. - ANSWER-
quartile deviation
The _____ and the ______ _______ both insensitive to extreme
scores in the distribution and should be used accordingly. -
ANSWER-median, quartile
,3|Page
_____ ____ is a more reliable indicator of the spread of a
distribution. It determines the amount each score deviates from
the mean of the distribution - ANSWER-standard deviation
The positive square root of the variance - ANSWER-standard
deviation
The average of the _______ deviations from the mean. The
variance has a squared unit and is in a much ____ ____ than
that of the original data - ANSWER-squared, larger scale
Variance is a measure of _____. It is the ____ _____ ____
between the mean and each item in the population or in the
sample. - ANSWER-dispersion, average squared distance
The normal distribution is a probability density which is ____-
shaped, symmetrical, and single peaked. The ____, ____ and
_____ coincide and lie at the center of the distribution. -
ANSWER-bell, mean, median, mode
, 4|Page
Skewness measures the lack of symmetry of a probability
distribution. A curve is said to be skewed to the right (or ______
skewed) if it tails off toward the high end of the scale (right tail
longer than the left). A curve is skewed to the left (or _______
skewed) if it tails off toward the low end of the scale. -
ANSWER-positively, negatively
_____ positive if the tails are "heavier" than for a normal
distribution and negative if the tails are "lighter" than for a
normal distribution. - ANSWER-Kurtosis
Regression analysis provides a "_______" mathematical
equation for the relationship between the dependent variable
(response) and independent variable(s). - ANSWER-best-fit
The _______ test can be used to determine how well
theoretical distributions (such as the normal and binomial
distributions) fit empirical distributions (i.e., those obtained
from sample data) - ANSWER-chi-squared
The compound rate of interest that when used to discount
study period costs and benefits of a project, will make their
